#ifndef	NULL
#define NULL		0
#endif

#ifndef _HAVE_SIZE_T
#define _HAVE_SIZE_T
typedef	unsigned int	size_t;
#endif

char* 	strcpy(char* s, const char* ct);
char*	strncpy(char* s, const char* ct, size_t n);
char* 	strcat(char* s, const char* ct);
char* 	strncat(char* s, const char* ct, size_t n);
int 	strcmp(const char* cs, const char* ct);
int 	strncmp(const char* cs, const char* ct, size_t n);
char*	strndup(const char *s, size_t n);
char*	strdup(const char *s);
char* 	strchr(const char* cs, int c);
char* 	strrchr(const char* cs, int c);
extern size_t 	strlen(const char* cs);
void* 	memcpy(void* s, const void* ct, size_t n);
void* 	memmove(void* s, const void* ct, size_t n);
int 	memcmp(const void* cs, const void* ct, size_t n);
void* 	memchr(const void* cs, int c, size_t n);
void* 	memset(void* s, int c, size_t n);


